Check when the password will expire for an AD User

I need some help for checking when the password will expire for an AD user via Orchestrator.

The passwords expire every 90 days.

I found code to show me when the password was last set but it is not readable.

pwdLastSet = user.getAttribute("pwdLastSet");
System.log("Password last set: " + pwdLastSet);

Output:

[2015-01-15 10:23:46.208] [I] Password last set: 130657846662968750

I found this about this pwdLastSet value: the value is stored as a large integer that represents the number of 100 nanosecond intervals since January 1, 1601 (UTC)